Just a couple of hours back I noticed that Google Adsense has started showing up Public Service Ads. As I surfed further, I noticed this change in many websites which I regularly visit. I then visited my own blog and I too had the same problem.

I Googled for any update or known issues but there is none. Instead I found so many others complaining the same in discussion boards and support forums.

Here is one of the complaints made by free3dart:

I am running a blog for the past 7 months, I earned around 300$ per month from valid clicks. I have a good traffic and my account produces 5000 imps at the average. but suddenly adsense displays Public service ads, any idea?Visit this discussion Here. Till moment, I have not received or known any issues with it. But there is an issue. Post your comments if you have the same problem, or have any information.